These tools helps architect, and engineers in their work. All of the serial numbers listed on this page end when The H. Trumpet & Cornet Serial Numbers Important facts to consider before you look up your serial number: King serial numbers are difficult to track due to the different variations of product changes and the lack of official records. This site is a MUST SEE for all vintage horn collectors, and I'd recommend you 'save' the link for future viewing too! I've corresponded with both guys that are so instrumental with the lauching of this site and invited them to visit both this website and the site. Please note that there are a few stencils with the 'King' name on them that were not made by the HN White Company: Pre-1916 Kings are Kohlert or Evette & Schaeffer stencils. Depending on whose serial numbers I look at, this could have been made anywhere between 19. What do you guys think? Am I wrong or right? What do you guys think? Am I wrong or right? Am I wrong or right? I just looked at the serial number list, and now I'm totally confused! My King Master cornet is serial # 19xxx. The serial number leads me to believe that this cornet might have a sterling silver bell.